Improvement in oil-ejectors



Urrnn STATES Infrmvr Fries.

JOHN Y. SMITH, OF ALEXANDRIA, VIRGINIA.

IM PROVEIVIEANT IN OILEJECTOR`S.

Lieeitimlion forming part of Letters Patent N().1i@,0fi. dated June b',1565.

Be it known that I, JOHN Y. SMITH, of Alexandria', in t-he county ofAlexandria and State of Virginia, have invented certa-in new and usefulImprovements in Apparatus for Raising Liquids-for instance, oil fromoilwells; and I hereby declare that the following is a full, clear, andexact description of the same, reference being had to the accompanyingdrawings.

My present invention relates to machinery for raising liquids, for whichan application for Letters Patent of the United States has been made byme and is now pending; and it consists in various improvements in theconstruction and operation of such` machinery, whereby greaterefficiency and economy in working the same are attained.

The distinguishing features of thisimproved apparatus consist, first, inthe enlarged valveehambers interposed between the sections of the mainpipe; second, in the peculiar construction and form of the steanrvalves;third, in the combination, with the enlarged valve-cl1am bers andconical steam-valves, ofannular valves for admitting the liquid andretaining the same; fourth, in the arrangement of revolving platesprovided with cams, so as to lift the valves for dropping the requiredquantity of liquid to produce condensation; fifth, in the application ofweighted valve-covers, so as to close the valves if the externalpressure exceed that from within.

To enable others to make and use my inven tion, I shall now proceed todescribe the same by reference to the drawings, in which- Figure l is avertical sectional elevation of the apparatus, representing the valvesin different positions. Fig. 2 is a horizontal section on line A; Fig.3, a side elevation of the revolving plate with cam for lifting thevalves Fig. t, a plan View of the same; Fig. 5, a plan view of thevalve-seat, and Fig. 6 a horizontal section on lineB in Fig. l.

The apparatus thus represented in said figures consists of a centralpipe, C, composed of longitudinal sections united by stop-joints, overwhich a sleeve, D, is run to securely maintain the parts in the sameline. The pipe which is used to convey steam to great depths is linedwith a hemp hose, E, or other nonconductor of heat. Around this pipe isarranged tube G, also composed of sections, which are united, by meansof screwthread joint or otherwise, with valve-chambers H, which areinterposed between the sections at convenient or `proper distancesapart. rIhis tube is hermetic, and is intended to convey the iiuid to beraised from wells or ships to any given point. The valve-chambers arecylindrical in form, and of a diameter larger than thatof the outertube, G, and are held in their proper relations to the inner pipe andthe steamvalves by means of a `reiiector or shield, I, `and the skeletonpartition J, cast to the interior of the valve-chamberi To the centralpipe, which, during the operation of the apparatus, is revolved upon itsaxis, are east or otherwise `affixed conical valves K with alongitudinal opening or slot. These valves are tapering downward, sothat by the weight of the cent-ral pipe a perfect fit is effected on thecorrespondingly-shaped valve-seats. The latter are, as before stated,formed in one piece with the casing of the valve-chamber, and the outletor opening of each is provided with a flap or clappet valve, 'weightedat its lower end, so as to automatically close said opening. l

The object of this arrangement is to prevent ingress of the liquid whichmay have been raised into valve-chamber from entering the steam-pipe,should the pressure of steam from some cause or other become kinferiorto the pressure of the liquid. If, therefore, the pressure of the liquidexceed that from within the pipe, then the clappet-valve will be closed,and thus seat the valve-opening, through which the exit of steam takesplace. If, on the other hand, the steam be of the required pressure, thesaid clappet-valve will be raised and allow the steam to rush out everytime the opening in the valve on the revolving central pipe comesopposite the stationary opening in the valve-seat fast to thevalve-chamber. In the partitions or skeleton valve-seats J are arrangedopenings, through which stems N of the light annular valves M pass,whose office it is to admit liquid from below into the valvechamberabove, and to retain it there until raised again into the uppervalve-chamber by the successive condensations of the steam. This hasbeen done in the apparatus heretofore used in a rather slow manner, thecondensations of steam not being effected so rapidly as desirable. Toremedy this I have devised the following arrangement: To the re volvingpipe, and immediately underneath the valve-seat J, is secured a plate,O, to the upperl side of which is cast or otherwise atsauce tached a camor projection, I), in the path of the downwardly-proj ectingstein Nofthe valve M, so that on each revolution the valve is for an instantlifted off its seat, allowing a small quantity of liquid alreadycollected in the chamber above to drop into the chamber below, which isfilled withsteam. The injection of the cold liquid into the chamberfilled with steam causes instantaneous condensation, which, producingvacuum. actuates the liquid below to riseinto the chamber. By this meansgreat rapidity of operation has been attained.

Having thus described my said improvements and the manner in which thesame is or may be carried into effect, I claim- 1. The combination of apipe or "tube in sections of enlarged valve-chambers, when arrangedintermediately between the tube or pipe sections and conccntrieallytherewith, substantially as set forth.

2. In combination with a revolving central steam-pipe and stationaryouter tube, the conical valves upon lhe former and their Valveseats uponthe latter, substantially as and for the purpose set forth.

The means herein described of producing condensation of steam in thechambers, for the purpose of raising` the liquid or oil by injeeting ordropping` a portion of the liquid raised into the said chamber7substantially in the manner herein set forth.

4L. The attachment to the revolving central steam-pipe of a cam-plate orthe equivalent thereof, in combination with stems or projections on thevalve, so that by revolving the pipe the valve shall be lifted off itsseat for dropping the requisite amount of liquid for condensation ofsteam, substantially as setv forth.

5. In combination with valve-chambers constructed and operating asdescribed, the weighted valvecovers, so as to close the valveopening ifthe external pressure of the liquid exceed that from within,substantially as set forth.

In testimony whereofl I have signed my name to this specification beforetwo subscribing witnesses.

J. Y. SMITH. lVitnesses:

A. PoLLoir, EDM. F. BROWN.

